To change the batteries of your BPM:
- Make sure the BPM is turned off.
If the LED is on, press the button for 3 seconds.
- Use a coin to turn the battery cover counterclockwise and remove the cover. Push down as you turn the cap to the left. Turning the cap without pressing down will not allow it to open.
- Replace the batteries.
Make sure the batteries are correctly inserted by following the polarity markings.
- Put the cover back in place.
If the BPM does not power on, please check that the cover has been fully pushed back in place as you won't be able to switch it on if it is halfway through.